Rotary door stop

ABSTRACT

The present disclosure provides a rotary door stop. The rotary door stop includes a door stop rotation base and a door stop body. The door stop body rotates about the door stop rotation base to define a locked state or an unlocked state. By engagement between a first limiting portion and a second limiting portion, the rotary door stop is retained in the locked state for ease of door closing; and when the rotary door stop approaches a door frame, retention of the unlocked state may also be released while the door is closed.

TECHNICAL FIELD

The present invention relates to the field of protection apparatuses,and in particular, relates to a rotary door stop.

BACKGROUND

In everyday life, doors may be closed by wind or opened or closed bychildren or pets playing in and out, which may cause adverse effectssuch as noise or finger pinch. A door stop for preventing closing of thedoor is thus provided in the form of a clamp, a hook, a wedge, or thelike.

A rotary door stop, which is more convenient to use than the other doorstops described above, may be rotated after being secured to the door,such that the rotary door stop is partially protruded between a doorbody and a door frame to stop closing of the door, or may be rotated toan inner side of an edge of the door body so as not to affect closing ofthe door.

However, conventional rotary door stops generally require manualoperations by users and are not convenient to use. For example,CN204609590U has disclosed a safety door stop, CN206917572U hasdisclosed a child safety door stop, and CN212079135U has disclosed achild anti-pinch door stop. These prior patents have all disclosed arotary door stop.

SUMMARY

The present disclosure is intended to provide a rotary door stop whichis convenient to use and capable of switching between a stop state and anon-stop state.

According to a first aspect of the present disclosure, a rotary doorstop is provided. The rotary door stop includes:

a door stop rotation base configured to be fixed to a door body or adoor frame;

a door stop body rotatably engaged with the door stop rotation base, thedoor stop body including a rotation base end and a stop arm, therotation base end being rotatably engaged onto the door stop rotationbase; wherein the stop arm is configured to rotate about the door stoprotation base to between the door body and the door frame to achieve astop effect to define a locked state, or is configured to rotate aboutthe door stop rotation base to a non-stop position to define an unlockedstate;

a rotation resetting member arranged between the door stop body and thedoor stop rotation base; and

a first locking portion, and

a first operating member provided with a third locking portion engagedwith the first locking portion;

wherein one of the first locking portion and the first operating memberis arranged on the door stop rotation base, and the other of the firstlocking portion and the first operating member is arranged on the doorstop body; the first locking portion and the third locking portion arerespectively provided with a first limiting portion and the secondlimiting portion, the first limiting portion and the second limitingportion being engaged with each other to limit rotation of the door stopbody relative to the door stop rotation base, such that the door stopbody is retained in the unlocked state; and

wherein the first operating member is arranged close to the door frameto cause the first operating member to act on the door frame when thedoor body is in a closed state, so as to release limit retention betweenthe first limiting portion and the second limiting portion, such thatwhen the door body is opened, the door stop body is capable ofautomatically rotating to a lock position under the action of therotation resetting member.

According to a second aspect of the present disclosure, a rotary doorstop is provided. The rotary door stop includes:

a door stop rotation base configured to be fixed to a door body or adoor frame;

a door stop body rotatably engaged with the door stop rotation base, thedoor stop body including a rotation base end and a stop arm, therotation base end being rotatably engaged onto the door stop rotationbase; wherein the stop arm is configured to rotate about the door stoprotation base to between the door body and the door frame to achieve astop effect to define a locked state, or is configured to rotate aboutthe door stop rotation base to a non-stop position to define an unlockedstate;

a first locking portion, and

a first operating member provided with a third locking portion engagedwith the first locking portion;

wherein one of the first locking portion and the first operating memberis arranged on the door stop rotation base, and the other of the firstlocking portion and the first operating member is arranged on the doorstop body; and wherein one of the first locking portion and the thirdlocking portion is provided with a first limiting portion, and the otherof the first locking portion and the third locking portion is providedwith a second limiting portion, the first limiting portion or the secondlimiting portion is a limiting planar surface, the first limitingportion and the second limiting portion being engaged with each other tolimit rotation of the door stop body relative to the door stop rotationbase, such that the door stop body is retained in the unlocked state.

According to a third aspect of the present disclosure, a rotary doorstop is provided. The rotary door stop includes:

a door stop rotation base configured to be fixed to a door body or adoor frame, the door stop rotation base being provided with a firstrotation limiting member;

a door stop body rotatably engaged with the door stop rotation base, thedoor stop body comprising a rotation base end and a stop arm, therotation base end being rotatably engaged onto the door stop rotationbase, the rotation base end being provided with a second rotationlimiting member; wherein the stop arm is configured to rotate about thedoor stop rotation base to between the door body and the door frame toachieve a stop effect to define a locked state, or is configured torotate about the door stop rotation base to a non-stop position todefine an unlocked state; and

a rotation resetting member, the rotation resetting member being aresetting torsion spring and arranged between the door stop body and thedoor stop rotation base;

wherein when the stop arm rotates to the locked state, the secondrotation limiting member acts on the first rotation limiting member tolimit rotation of the stop arm relative to the door stop rotation base.

The rotary door stop according to the present disclosure achieves thefollowing beneficial effects:

1. The rotary door stop is convenient to use, and the rotary door stopis switchable between the locked state and the unlocked state byrotation of the door stop body. In addition, the operating member may bearranged on the rotatably arranged door stop body, or may be arranged onthe fixedly arranged door stop rotation base.

2. By correspondingly arranging the rotation limiting mechanisms, thedoor stop body may be limited and retained to the unlocked state, suchthat when the user closes the door body, the user does not need tooperate door body while operating the rotary door stop, but only needsto first rotate the rotary door stop to the unlocked position and thenclose the door body.

3. In a preferred embodiment, the rotary door stop also has theautomatic unlocking function. That is, after the door body is closed,since the door frame and the first operating member acts on each other,limit of the rotary door stop at the unlocked position is released; andwhen the door body is opened again, the door stop body is capable ofautomatically rotating to the locked state, thereby implementing aconvenient operation for door closing at a single time.

4. In a preferred embodiment, the rotary door stop also has the constantopening function. That is, by adjusting the second operating member, thedoor stop body is long-time retained at the unlocked position, such thatthe door body can be freely opened or closed without being influenced bythe rotary door stop. Where the function of the rotary door stop isimplemented, the function is restored only by releasing the secondoperating member. Therefore, the use is convenient.

5. In other embodiments, unlocking of the rotary door stop at theunlocked position is manually implemented. That is, the door stop bodyis first rotated to the unlocked position, and after the door body isclosed, the rotary door stop is retained in the unlocked state; afterthe door body is opened, the first operating member or the secondoperating member is operated to release limit of the door stop body tocause the door stop body to rotate to the locked state (or limit of thedoor stop body is first released, and then the door body is closed).

6. In a simple embodiment, the rotary door stop may be retained in anintention of rotating to the locked state, and where the door is to beclosed, the rotary door stop is manually rotated to the unlockedposition and retained in the unlocked state, and then the door isclosed.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic view of engagement between a rotary door stop anda mounting assisting member according to a first embodiment of thepresent disclosure;

FIG. 2 is a schematic structural view of the mounting assisting memberaccording to the embodiment as illustrated in FIG. 1 ;

FIG. 3 is a schematic exploded structural view of the rotary door stopaccording to the embodiment as illustrated in FIG. 1 ;

FIG. 4 is a schematic structural view of a door stop rotation base inFIG. 3 ;

FIG. 5 is a schematic partial enlarged view of the door stop rotationbase in FIG. 4 ;

FIG. 6 is a schematic structural bottom view of a door stop body in FIG.3 ;

FIG. 7 is a schematic structural view of a second operating member inFIG. 6 ;

FIG. 8 is a schematic structural view of a first operating member inFIG. 6 ;

FIG. 9 is a schematic structural view of a rotary door stop in anunlocked state according to a second embodiment of the presentdisclosure;

FIG. 10 is a schematic exploded structural view of the rotary door stopin FIG. 9 ;

FIG. 11 is a schematic structural view of a door stop body according tothe embodiment as illustrated in FIG. 9 ;

FIG. 12 is a schematic partial enlarged view of the door stop rotationbase in FIG. 11 ;

FIG. 13 is a schematic structural view of a door stop rotation baseaccording to the embodiment as illustrated in FIG. 9 ;

FIG. 14 is a schematic structural view of a first operating memberaccording to the embodiment as illustrated in FIG. 9 ;

FIG. 15 is a schematic structural view of a second operating memberaccording to the embodiment as illustrated in FIG. 9 ; and

FIG. 16 is a schematic structural view of the rotary door stop in alocked state according to the embodiment as illustrated in FIG. 9 .

DESCRIPTION OF THE EMBODIMENTS

A rotary door stop 200 is configured to be mounted on a door body or adoor frame, to extend out of the door body or the door frame to preventthe door body from being closed. Hereinafter, description is given usinga scenario where the rotary door stop 200 is mounted on a surface of thedoor body.

First Embodiment

As illustrated in FIG. 1 , the rotary door stop 200 includes a rotationbase end 21 rotatably secured to the door body. The rotary door stop 200is elongated such that a stop arm 22 is formed at a position away fromthe rotation base end 21. During use, the stop arm 22 is capable ofrotating about the rotation base end 21 to between the door body and thedoor frame to achieve a stop effect, or the stop arm 22 is removedbetween the door body and the door frame to allow the door body to beclosed.

In this embodiment, the rotary door stop 200 is entirely elongated, oneend of the rotary door stop 200 is formed as the rotation base end 21,and the other end of the rotary door stop 200 is formed as the stop arm22. A bottom surface of the rotary door stop 200 is arranged close tothe surface of the door body, and a top surface of the rotary door stop200 is configured to be in contact with the door frame to achieve a stopeffect.

As illustrated in FIG. 1 , a buffering portion 23 is formed at the stoparm 22 on the top surface of the rotary door stop 200. The bufferingportion 23 is made of a soft rubber or the like flexible materials, suchthat a buffering effect is achieved when the buffering portion 23 is incontact with the door frame. In this way, the door frame is preventedfrom being damaged, and noise generation is prevented.

In this embodiment, configuration of the rotary door stop 200 is notlimited to that illustrated in FIG. 1 . The configuration of the rotarydoor stop 200 may be designed according to actual needs on the premiseof allowing rotation to prevent door closing or allow door closing.

As illustrated in FIG. 1 and FIG. 2 , the rotary door stop 200 accordingto this embodiment further includes a mounting assisting member 100configured to secure the rotary door stop 200 to the surface of the doorbody. The mounting assisting member 100 includes a mounting assistingmember body 101. A mounting positioning slot 102 configured to allow atleast part of the rotary door stop 200 to be engaged therein is formedin the mounting assisting member body 101, and an operating memberpositioning slot 103 is further arranged in the mounting assistingmember body 101. The mounting assisting member 100 is positioned inadvance on the door body, then the rotary door stop 200 is positionedand secured in the mounting assisting member 100, and finally themounting assisting member 100 is removed, such that mounting andpositioning of the rotary door stop 200 are conveniently achieved. Thisis particularly important in the rotary door stop having an automaticunlocking function. Since locking needs to be automatically released forthe rotary door stop 200 having the automatic unlocking function,stricter requirements are imposed on positioning in mounting.

In this embodiment, two ends of the mounting assisting member body 101are formed as positioning ends 104. During assisting of mounting, in thecase that the door body is closed, the mounting assisting member body101 is attached on the surface of the door body and the positioning ends104 at the two ends of the mounting assisting member body 101 are causedto abut against the door frame; then the door body is opened, and therotary door stop 200 is positioned and mounted in the mountingpositioning slot 102; and finally, the mounting assisting member 100 isremoved.

As illustrated in FIG. 3 to FIG. 8 , the rotary door stop 200 includes adoor stop rotation base 210 and a door stop body 220 rotatably engagedwith the door stop rotation base 210. The door stop rotation base 210 issecured to the door body, for example, by an adhesive or a screw, suchthat the door stop body 220 is rotatably arranged relative to the doorbody. It should be noted that in a direction perpendicular to thesurface of the door body, the door stop body 220 and the door stoprotation base 210 are relatively fixed, that is, the door stop body 220is arranged as being only capable of rotating along a plane directionrelative to the door stop rotation base.

In this embodiment, a rotation angle of the door stop body 220 relativeto the door stop rotation base 210 is approximately 90 degrees, suchthat when the door stop body 220 rotates to a horizontal position, thedoor stop body 220 extends out between the door body and the door frameto achieve a stop effect, and when the door stop body 220 rotatescounterclockwise or clockwise at an angle of 90 degrees to a verticalposition, the door stop body 220 is on an inner side of an edge of thedoor body such that closing of the door body is not stopped.

When the door stop body 220 rotates to the horizontal position, the doorstop body 220 stops closing of the door body and thus defines a lockedposition (a locked state); and when the door stop body 220 rotates tothe vertical position, the door stop body 220 allows closing of the doorbody and thus define an unlocked position (an unlocked state).

In this embodiment, the stop arm 22 and the buffering portion 23 areboth formed on the door stop body 220. In addition, a rotation base slot204 that is recessed is arranged on a bottom surface of the door stopbody 220. The rotation base slot 204 is configured to allow the doorstop rotation base 210 to be engaged therein, such that the bottomsurface of the rotary door stop 200 formed by the door stop body 220 andthe door stop rotation base 210 is approximately a planar surface. Inthis way, the door stop body 220 is capable of stably rotating on thesurface of the door body.

As illustrated in FIG. 4 , the door stop rotation base 210 is providedwith a first rotation limiting member 216 that is radially arranged. Asillustrated in FIG. 6 , two rotation limiting members 205 are arrangedin the rotation base slot 204, and an angle of 90 degrees is definedbetween the two rotation limiting members 205 in a circumferentialdirection. When the door stop rotation base 210 is engaged in therotation base slot 204, the first rotation limiting member 216 is in arotation fan region 209 formed between the two rotation limiting members205, such that the door stop body 220 has a rotation angle of 90 degreesrelative to the door stop rotation base 210.

Nevertheless, in other embodiments, by changing a relative positionalrelationship between the two rotation limiting members 205, the rotationangle of the door stop body 220 relative to the door stop rotation base210 may be any other desired angle value.

As illustrated in FIG. 3 , in this embodiment, the door stop body 220includes a first body member 201 and a second body member 202 that arearranged in a vertical direction. The first body member and the secondbody member are engaged with each other to form the door stop body 220.

A first operating member 221 and a second operating member 222 arearranged between the first body member 201 and the second body member202. The first operating member 221 and the second operating member 222are configured to be engaged onto the door stop rotation base 210 tocontrol the door stop body 220 to rotate or to be locked relative to thedoor stop rotation base 210.

In this embodiment, the door stop body 220 further includes a resettingtorsion spring 223. The resetting torsion spring 223 is arranged betweenthe door stop rotation base 210 and the door stop body 220, such thatthe door stop body 220 is capable of spontaneously rotating from theunlocked position to the locked position.

As illustrated in FIG. 4 , the door stop rotation base 210 includes acircular rotation base body. A bottom surface of the circular rotationbase body is secured to the door body. A second locking portion 211 anda first locking portion 212 are arranged on an upper surface of therotation base body. In this embodiment, the second locking portion 211and the first locking portion 212 are at radially opposite positions,that is, the two locking portions are arranged at an angle of 180degrees. A central post 215 is protruded from a center of the rotationbase body. A torsion spring mounting hole configured to receive theresetting torsion spring 223 is arranged in a periphery of the centralpost 215. The resetting torsion spring 223 is sleeved on the peripheryof the central post 215, and one end of the resetting torsion spring 223is engaged in the torsion spring mounting hole, and the other end of theresetting torsion spring 223 acts on the first body member 201 toachieve automatic resetting.

As illustrated in FIG. 4 , the rotation base body is further providedwith a rotation base slot 217 configured to allow the second rotationlimiting member 205 to be engaged therein. An inner wall of the rotationbase slot 217 is formed as a rotation base slot wall 218.

As illustrated in FIG. 6 , the rotation base slot 204 is furtherprovided with a first through hole 206 opposite to the first lockingportion 212 and a second through hole 207 opposite to the second lockingportion 211. The first operating member 221 and the second operatingmember 222 are respectively engaged at the first through hole 206 andthe second through hole 207. The first operating member 221 is providedwith a third locking portion 313 engaged with the first locking portion212, and the second operating member 222 is provided with a fourthlocking portion 301 engaged with the second locking portion 211. Acentral through hole 208 configured to allow engagement of the centralpost 215 is arranged at a center position of the rotation base slot 204.

In this embodiment, the second locking portion 211 is a locking recess,the fourth locking portion 301 is a locking protrusion, and the secondlocking portion 211 and the fourth locking portion 301 are engaged witheach other to limit the door stop body.

The first operating member 221 is configured to lock the door stop body220 to the unlocked position by engagement between the third lockingportion 313 and the first locking portion 212 when the door stop body220 rotates to the unlocked position. The second operating member 222 isconfigured to lock the door stop body 220 to the unlocked position byengagement between the fourth locking portion 301 and the second lockingportion 211 when the door stop body 220 rotates to the unlockedposition. The second operating member 222 is formed as aconstantly-opened lock, and the first operating member 221 is formed asan automatic lock.

In this embodiment, the first operating member 221 and the first lockingportion 212 are engaged with each other to form a first rotationlimiting mechanism, and the second operating member 222 and the secondlocking portion 211 are engaged with each other to form a secondrotation limiting mechanism. The two rotation limiting mechanisms areconfigured to temporarily and long-time limit and lock the door stopbody 220, such that the door stop body 220 is temporarily or long-timein the unlocked state.

As illustrated in FIG. 6 and FIG. 7 , the second operating member 222 ismovably arranged in the door stop body 220 along a direction of a Zaxis. When the second operating member 222 is displaced along a positivedirection of the Z axis, the fourth locking portion 301 runs through thesecond through hole 207 and then extends into the rotation base slot204, such that the fourth locking portion 301 is engaged into the secondlocking portion 211 to lock rotation of the door stop body 220 relativeto the door stop rotation base 210 by male-female engagement between thefourth locking portion 301 and the second locking portion 211, and thusto retain the door stop body 220 to the unlocked position. In this way,the rotary door stop is constantly opened. A second key 302 exposed fromthe door stop body 220 is formed at an outer end of the second operatingmember 222 for ease of operation.

In this embodiment, a slot is formed an upper surface of the rotationbase body only on the second locking portion 211. Therefore, at otherpositions other than this position, the second operating member 222 isincapable of moving along the direction of the Z axis, or the secondoperating member 222 is capable of moving but a movement stoke is notsufficient to form a constantly opened state.

As illustrated in FIG. 4 and FIG. 5 , the first locking portion 212includes a first guiding portion 213 and a first limiting portion 214.The first guiding portion 213 is a limiting planar surface, and thefirst limiting portion 214 is a guiding curved surface.

As illustrated in FIG. 6 and FIG. 8 , the second operating member 222includes a second operating member body 311. An outer end of the secondoperating member body 311 is formed as a first key 312 exposed from thedoor stop body 220, and a third locking portion 313 is protruded from alower surface of the second operating member body 311. The third lockingportion 313 includes a second limiting portion 314 and a second guidingportion 315. The second limiting portion 314 is a limiting planarsurface engaged with the first guiding portion 213, and the secondguiding portion 315 is a guiding curved surface engaged with the firstlimiting portion 214.

In this embodiment, an operation resetting member, for example, aresetting spring, is arranged between the first operating member 221 andthe door stop body 220, such that the first operating member 221 retainsan extending intention with respect to the door stop body 220 along anegative direction of a Y axis.

When the door stop body 220 rotates from the locked position relative tothe door stop rotation base 210, the third locking portion 313 rotatesalong the rotation base slot wall 218. When the third locking portion313 approaches the unlocked position, the first limiting portion 214 andthe second guiding portion 315 act on each other, such that the firstoperating member 221 retracts along the Y axis. In this way, the secondlimiting portion 314 and the second guiding portion 315 areautomatically engaged with each other to achieve limiting, such that thedoor stop body 220 is locked in the unlocked state relative to the doorstop rotation base 210.

In this embodiment, the first operating member 221 is arranged on aright side (or a left side) of the door stop body 220, such that whenthe door stop body 220 is mounted close to the door frame, in the casethat the door stop body 220 is in the unlocked state to cause the doorto be closed, the first operating member 221 is acted by the door frameto retract and displace inwards along a positive direction of the Yaxis, such that the limit effect between the second limiting portion 314and the first limiting portion 214 is released. When a user opens thedoor body, the door stop body 220 is capable of automatically rotatingto the locked state under the effect of the resetting torsion spring223.

Therefore, use of the rotary door stop 200 is described as follows:

1. Mounting of the rotary door stop 200 is assisted by the mountingassisting member 100, such that the position satisfies requirements toachieve automatic unlocking in daily use. The process of assistingpositioning and mounting of the mounting assisting member 100 is asdescribed above, and upon completion of mounting, the mounting assistingmember 100 is removed.

2. During normal use, the door stop body 220 is by default in the lockedstate at the horizontal position, and the stop arm 22 is between thedoor body and the door frame to prevent closing of the door body. Inthis process, the buffering portion 23 acts on the door frame to achievebuffering and mutation effects.

3. When the door body needs to be closed, the door stop body 220 isrotated counterclockwise in a state where the door body is opened, suchthat the door stop body 220 moves upwards to a vertical position. Inthis case, the door stop body 220 does not stop closing of the doorbody, and the door stop body 220 may be retained in the unlocked stateuntil the user closes the door body.

4. When the door body is closed, the first operating member 221 of thedoor stop body 220 is acted by the door frame to retract inwards, suchthat the limit effect between the second limiting portion 314 and thefirst limiting portion 214 is released.

5. When the door body is opened again, since the limit effect isreleased and the resetting torsion spring 223 acts, the door stop body220 rotates clockwise relative to the door stop rotation base 210 at anangle of 90 degrees to the locked state at the horizontal position, suchthat subsequently automatically stopping closing of the door body isachieved.

6. Described above is an operating mode of closing the door for a singletime, where the door body needs to be closed for multiple times, in thecase that the door stop body 220 rotates to the unlocked state, thesecond operating member 222 may be operated, such that the fourthlocking portion 301 and the second locking portion 211 are male-femaleengaged with each other to long-time lock rotation of the door stop body220 relative to the door stop rotation base 210, that is, the rotarydoor stop does not function, or a constantly opened state of the rotarydoor stop is defined.

In other embodiments, either of the first limiting portion 214 and thesecond guiding portion 315 may be a guiding curved surface or a guidingplanar surface.

It should be noted that the above description is given using FIG. 1 toFIG. 8 as examples, and in practice, the specific structure of therotary door stop according to the present disclosure is not limitedhereto, and some variations may be made based on the above illustration.

For example, the positions of the first operating member 221 and thesecond operating member 222 are exchanged (corresponding adjustments arealso made to the other engaged parts). This is substantially the same asthe above practice. However, only the position of the unlocked state ischanged from the upward vertical direction to the downward verticaldirection, which does not change the function of the product.Optionally, the first operating member 221 is adjusted from a sidesurface of the door stop body 220 to underneath of the door stop body220 opposite to the stop arm 22. This may affect implementation of theautomatic unlocking functions.

Optionally, the first operating member 221 and the correspondingstructure thereof are canceled, and instead, the second operating member222 and the engaged structure thereof are only remained That is, thesecond operating member 222 is only remained such that the door stopbody 220 is locked when rotating to the unlocked position, such that theuser is capable of closing the door with no need of operating the rotarydoor stop. On the contrary, the case is similar, and the first operatingmember 221 is only remained.

These changes also achieve the effect of stopping closing of the doorbody. However, upon unlocking, the door body may not be automaticallyunlocked but needs to be manually unlocked, that is, whether the rotarydoor stop is capable of automatically canceling limit or lock of thelocked state in closing the door. The manual unlocking may be performedafter the door body is closed, which is similar to the automaticunlocking process according to the above embodiment, or the manualunlocking may be performed when the door body is opened again afterbeing closed. These two unlocking patterns achieve substantially thesame effect. However, in the first unlocking pattern, the operation isquiet and less damage is caused to the rotary door stop; while in thesecond unlocking patter, the operation is performed in the state wherethe door is opened, and in this case, manual unlocking causes the doorstop body 220 to quickly rotate to the locked position and thus causenoise and damage to the product under the effect of the resettingtorsion spring 223.

In other embodiments, the rotary door stop 200 may also not providedwith the first operating member 221 or the second operating member 222.In this case, where the rotary door stop needs to be closed, the doorstop body 220 needs to be first rotated to the unlocked state and thedoor is closed in this state. After the door is closed, the door stopbody 220, under the effect of the resetting torsion spring 223, the doorstop body 220 may not be retained at the intention of rotating to theunlocked state but only stopped by the door frame, and when the useropens the door again, the door stop body 220 automatically rotates tothe unlocked state to stop closing of the door body.

Nevertheless, in this embodiment, the rotation angle of the door stopbody 220 relative to the door stop rotation base 210 is not limited to90 degrees, which may be any angle value in the range of 90 to 270degrees. The rotation angle may be defined according to actual needs bydefining an angular relationship between the two second rotationlimiting members 205.

Second Embodiment

As illustrated in FIG. 9 to FIG. 16 , a rotary door stop 200 isprovided. The main operating principle and structure of the rotary doorstop 200 are the same as those in the first embodiment. The differencelies in the detailed structure designs and the positions of the engagedparts.

Therefore, only the differences are mainly described hereinafter.

In this embodiment, the shapes of the door stop rotation base 210 andthe door stop body 220 are obviously different from those in the firstembodiment. However, the rotation engagement relationship between thedoor stop rotation base 210 and the door stop body 220 is the same andthe operating principle is the same. To be specific, the door stop body220 rotates relative to the door stop rotation base 210 and is locatedbetween the door body and the door frame to form a locked state (or alocked position) or an unlocked state (or an unlocked position).

Another major difference between this embodiment and the firstembodiment is that the specific positions of the first rotation limitingmechanism and the second rotation limiting mechanism that are engagedwith each other to temporarily or long-time lock the door stop body 220to the unlocked state relative to the door stop rotation base 210 aredifferent.

In this embodiment, the first operating member 221 and the secondoperating member 222 are both arranged in the door stop rotation base210, and the first locking portion 212 and the second locking portion211 are both formed on the door stop body 220. These members andportions are correspondingly engaged with each other to achieve aneffect of limiting rotation. That is, in this embodiment, the positionsof the first operating member 221 and the first locking portion 212 areexchanged, the positions of the second operating member 222 and thesecond locking portion 211 are exchanged. Since these members andportions are parts that are engaged with each other to function, uponposition exchange, the desired functions are also implemented.

As illustrated in FIG. 10 , the door stop rotation base 210 includes afirst door stop rotation base 231 and a second door stop rotation base232. A chamber is defined between the door stop rotation base 231 andthe second door stop rotation base 232 to allow the first operatingmember 221 and the second operating member 222 to be at least partiallyreceived therein.

As illustrated in FIG. 14 and FIG. 15 , the major structures and themovement patterns of the first operating member 221 and the secondoperating member 222 relative to the door stop rotation base 210 are thesame as those in the first embodiment, which are not described hereinany further. In this embodiment, the first operating member 221 isinwards telescopically arranged. The inwards movement of the firstoperating member 221 causes the third locking portion 313 to bedisengaged from the first locking portion 212, and the outwards movementof the first operating member 221 causes the third locking portion 313to be engaged with the first locking portion 212 to limit the door stopbody 220 to the unlocked state. In this embodiment, the second operatingmember 222 is movably arranged along a direction perpendicular to abottom surface of the door stop rotation base 210. The movement of thesecond operating member 222 towards the direction of the bottom surfacecauses the fourth locking portion 301 to be disengaged from the secondlocking portion 211, and the movement of the second operating member 222away from the direction of the bottom surface causes the fourth lockingportion 301 to be engaged with the second locking portion 211 to limitthe door stop body 220 to the unlocked state.

As illustrated in FIG. 13 , the first through hole 206 and the secondthrough hole 207 are arranged at corresponding positions on the firstdoor stop rotation base 231 of the door stop rotation base 210.

In this embodiment, the door stop body 220 is subject to the followingrotation limit relationship relative to the door stop rotation base 210:

First, the first door stop rotation base 231 is provided with a firstlimiting block 303 and a second limiting block 305 that are spacedapart. A rotation fan region 209 configured to allow the third lockingportion 313 to rotate therein is formed between the first limiting block303 and the 5 second limiting block 305. Correspondingly, the door stopbody 220 is provided with a third limiting block 306.

Second, in the locked state, the first limiting portion 214 of the firstlocking portion 212 is in contact with one side of the first limitingblock 303, and the first limiting portion 214 is abutted against thefirst limiting block 303 to limit rotation of the door stop body 220relative to the door stop rotation base 210 and to thus retain the doorstop body 220 to this state. When the door stop body 220 rotates to theunlocked state relative to the door stop rotation base 210, the thirdlimiting block 306 rotates to the fourth limiting portion 304 on theother side of the first limiting block 303, the third limiting block 306is abutted against the first limiting block 303 to limit furtherrotation of the door stop body 220 relative to the door stop rotationbase 210. In addition, in this case, the first locking portion 212rotates to a position where the first locking portion 212 is capable ofengaging with the third locking portion 313. The engagement between thefirst locking portion 212 and the third locking portion 313 limitsreverse rotation of the door stop body 220, such that the door stop body220 stops at the rotation position to define the locked state.

In this embodiment, the first rotation limiting mechanism and the secondrotation limiting mechanism are also arranged at radially oppositepositions, that is, the two rotation limiting mechanisms are arranged atan angle of 180 degrees. Therefore, in this embodiment, the firstoperating member 221 and the second operating member 222 are botharranged on the door stop rotation base 210. The two operating membersare exposed from the door stop rotation base 210 in the unlocked state,as illustrated in FIG. 9 . In the unlocked state, the first operatingmember 221 is shielded by the stop arm 22, as illustrated in FIG. 16 .

Nevertheless, in other embodiments, the two operating members may alsobe arranged at an angle of 90 degrees, or at any other engagement angle.

In addition, in this embodiment, the door stop body 220 further includesa pad 24. The pad 24 is arranged at a lower end of the stop arm 22, anda bottom surface of the pad 24 is flush with the bottom surface of thedoor stop rotation base 210, such that in the unlocked state, the pad 24is caused to at least partially act on the surface of the door body tosustain an action force and prevent the bottom surface of the door stoprotation base 210 from suffering the force resulting in loose of therotary door stop. Further, a gap is defined between the pad 24 and thedoor stop rotation base 210 to allow arrangement of the first operatingmember 221 in the unlocked state.

What is claimed is:
 1. A rotary door stop, comprising: a door stoprotation base configured to be fixed to a door body or a door frame; adoor stop body rotatably engaged with the door stop rotation base, thedoor stop body comprising a rotation base end and a stop arm, therotation base end being rotatably engaged onto the door stop rotationbase; wherein the stop arm is configured to rotate about the door stoprotation base to between the door body and the door frame to achieve astop effect to define a locked state, or is configured to rotate aboutthe door stop rotation base to a non-stop position to define an unlockedstate; a rotation resetting member arranged between the door stop bodyand the door stop rotation base; a first locking portion; and a firstoperating member provided with a third locking portion engaged with thefirst locking portion; wherein one of the first locking portion and thefirst operating member is arranged on the door stop rotation base, andthe other of the first locking portion and the first operating member isarranged on the door stop body; the first locking portion and the thirdlocking portion are respectively provided with a first limiting portionand the second limiting portion, the first limiting portion and thesecond limiting portion being engaged with each other to limit rotationof the door stop body relative to the door stop rotation base, such thatthe door stop body is retained in the unlocked state; and wherein thefirst operating member is arranged close to the door frame to cause thefirst operating member to act on the door frame when the door body is ina closed state, so as to release limit retention between the firstlimiting portion and the second limiting portion, such that when thedoor body is opened, the door stop body is capable of automaticallyrotating to a lock position under the action of the rotation resettingmember.
 2. The rotary door stop according to claim 1, wherein the firstlocking portion and the third locking portion respectively comprise afirst guiding portion and a second guiding portion, the first guidingportion or the second guiding portion being a guiding curved surface ora guiding planar surface; and the first limiting portion or the secondlimiting portion is a limiting planar surface; wherein the first guidingportion and the second guiding portion act on each other to achieve aguide effect to cause the first locking portion and the third lockingportion to be engaged with each other when the door stop body rotatesfrom the locked state to the unlocked state.
 3. The rotary door stopaccording to claim 2, wherein the door stop rotation base and the doorstop body respectively comprise a second locking portion and a secondoperating member, the second operating member being provided with afourth locking portion engaged with the second locking portion, thefourth locking portion and the second locking portion being engaged witheach other to limit and retain the door stop body to the unlocked staterelative to the door stop rotation base, such that the rotary door stopis retained in a constantly open state.
 4. The rotary door stopaccording to claim 3, wherein the second locking portion is a lockingrecess, and the fourth locking portion is a lock protrusion, the lockingrecess and the locking protrusion being male-female engaged with eachother to limit the door stop body; and the rotation resetting member isa resetting torsion spring.
 5. The rotary door stop according to claim4, wherein the first locking portion is arranged on the door stoprotation base, and the first operating member is arranged on the doorstop body; and the second locking portion is arranged on the door stoprotation base, and the second operating member is arranged on the doorstop body.
 6. The rotary door stop according to claim 3, wherein arotation base slot is recessed in a bottom surface of the door stopbody, the door stop rotation base being at least partially engaged intothe rotation base slot; wherein the rotation base slot is provided witha first through hole and a second through hole, the first operatingmember and the second operating member being respectively engaged at thefirst through hole and the second through hole; an operation resettingmember is arranged between the first operating member and the door stopbody; and the door stop rotation base is provided with a first rotationlimiting member arranged along a radial direction, the rotation baseslot is internally provided with two second rotation limiting members, arotation fan region being formed between the two second rotationlimiting members, the first rotation limiting member being engaged inthe rotation fan region; the first operating member is displaced inwardsalong a direction parallel to a surface of the door body to unlock thedoor stop body, and the second operating member is displaced along adirection perpendicular to the surface of the door body to lock orunlock the door stop body; and the second locking portion is arranged onan upper surface of the door stop rotation base, and the second lockingportion and the first locking portion are arranged at an angle of 180 or90 degrees on the door stop base.
 7. The rotary door stop according toclaim 3, further comprising: a mounting assisting member removable uponcompletion of mounting; wherein the mounting assisting member comprisesa mounting assisting member body, a mounting positioning slot, and apositioning end, the positioning end being arranged at least one end ofthe mounting assisting member body; the rotation door stop is elongated,one end of the rotation door stop is formed as the rotation base end,and the other end of the rotation door stop is formed as the stop arm; abuffering portion is arranged at the stop arm; the door stop rotationbase is secured to a surface of the door body by an adhesive, and thedoor stop body has a rotation angle of 90 degrees relative to the doorstop rotation base; and the door stop body comprises a first body memberand a second body member that are arranged along a vertical direction,the first body member and the second body member being engaged with eachother to form the door stop body; and a second key exposed from the doorstop body is formed at an outer end of the second operating member; thesecond operating member comprises a second operating member body, anouter end of the second operating member body being formed as a firstkey exposed from the door stop body, the third locking portion beingprotruded from a lower surface of the second operating member body. 8.The rotary door stop according to claim 3, wherein the first lockingportion is arranged on the door stop body, and the first operatingmember is arranged on the door stop rotation base; and the secondlocking portion is arranged on the door stop body, and the secondoperating member is arranged on the door stop rotation base; and thedoor stop rotation base comprises a first door stop rotation base and asecond door stop rotation base, the first operating member or the secondoperating member being arranged between the first door stop rotationbase and the second door stop rotation base; and the first door stoprotation base is provided with a first through hole and a second throughhole, the first operating member and the second operating member beingrespectively engaged at the first through hole and the second throughhole; an operation resetting member is arranged between the firstoperating member and the door stop body.
 9. The rotary door stopaccording to claim 3, wherein the door stop rotation base comprises arotation base slot that is recessed and a rotation base slot wall thatsurrounds the rotation base slot, the first locking portion beingarranged in the rotation base slot and adjacent to the rotation baseslot wall, the third locking portion being engaged into the rotationbase slot and moving along the rotation base slot wall or the firstlocking portion; and the first door stop rotation base is provided witha first limiting block and a second limiting block that are spacedapart, a rotation fan region being defined between the first limitingblock and the second limiting block, and the door stop body is providedwith a third limiting block; wherein in the locked state, the firstlimiting portion is in contact with one side of the first limiting blockto limit the door stop body; and in the unlocked state, the thirdlimiting block is abutted against the other side of the first limitingblock to limit the door stop body.
 10. A rotary door stop, comprising: adoor stop rotation base configured to be fixed to a door body or a doorframe; a door stop body rotatably engaged with the door stop rotationbase, the door stop body comprising a rotation base end and a stop arm,the rotation base end being rotatably engaged onto the door stoprotation base; wherein the stop arm is configured to rotate about thedoor stop rotation base to between the door body and the door frame toachieve a stop effect to define a locked state, or is configured torotate about the door stop rotation base to a non-stop position todefine an unlocked state; a first locking portion; and a first operatingmember provided with a third locking portion engaged with the firstlocking portion; wherein one of the first locking portion and the firstoperating member is arranged on the door stop rotation base, and theother of the first locking portion and the first operating member isarranged on the door stop body; and wherein one of the first lockingportion and the third locking portion is provided with a first limitingportion, and the other of the first locking portion and the thirdlocking portion is provided with a second limiting portion, the firstlimiting portion or the second limiting portion is a limiting planarsurface, the first limiting portion and the second limiting portionbeing engaged with each other to limit rotation of the door stop bodyrelative to the door stop rotation base, such that the door stop body isretained in the unlocked state.
 11. The rotary door stop according toclaim 10, wherein the first locking portion and the third lockingportion respectively comprise a first guiding portion and a secondguiding portion, the first guiding portion or the second guiding portionbeing a guiding curved surface or a guiding planar surface; wherein thefirst guiding portion and the second guiding portion act on each otherto achieve a guide effect to cause the first locking portion and thethird locking portion to be engaged with each other when the door stopbody rotates from the locked state to the unlocked state; and a rotationresetting member is arranged between the door stop body and the doorstop rotation base, the rotation resetting member being a resettingtorsion spring.
 12. The rotary door stop according to claim 11, whereinone of the door stop rotation base and the door stop body is providedwith a second locking portion, and the other of the door stop rotationbase and the door stop body is provided with a second operating member,the second operating member being provided with a fourth locking portionengaged with the second locking portion, the second locking portion andthe fourth locking portion being respectively a locking recess and alocking protrusion, the locking recess and the locking protrusion beingmale-female engaged with each other to limit rotation of the door stopbody relative to the door stop rotation base, such that the door stopbody is retained in a unlocked state; and the first locking portion isarranged on the door stop rotation base, and the first operating memberis arranged on the door stop body; and the second locking portion isarranged on the door stop rotation base, and the second operating memberis arranged on the door stop body.
 13. The rotary door stop according toclaim 12, wherein a rotation base slot is recessed in a bottom surfaceof the door stop body, the door stop rotation base being at leastpartially engaged into the rotation base slot; wherein the rotation baseslot is provided with a first through hole and a second through hole,the first operating member and the second operating member beingrespectively engaged at the first through hole and the second throughhole; an operation resetting member is arranged between the firstoperating member and the door stop body; the door stop rotation basecomprises a rotation base slot that is recessed and a rotation base slotwall that surrounds the rotation base slot, the first locking portionbeing arranged in the rotation base slot and adjacent to the rotationbase slot wall, the third locking portion being engaged into therotation base slot and moving along the rotation base slot wall or thefirst locking portion; and the first operating member is displacedinwards along a direction parallel to a surface of the door body tounlock the door stop body, and the second operating member is displacedalong a direction perpendicular to the surface of the door body to lockor unlock the door stop body; and the door stop rotation base isprovided with a first rotation limiting member arranged along a radialdirection, the rotation base slot is internally provided with two secondrotation limiting members, a rotation fan region being formed betweenthe two second rotation limiting members, the first rotation limitingmember being engaged in the rotation fan region; the second lockingportion is arranged on an upper surface of the door stop rotation base,and the second locking portion and the first locking portion arearranged at an angle of 180 or 90 degrees on the door stop base.
 14. Therotary door stop according to claim 10, further comprising: a mountingassisting member; wherein the mounting assisting member comprises amounting assisting member body and a mounting positioning slot, and themounting assisting member is removable upon completion of mounting; therotation door stop is elongated, one end of the rotation door stop isformed as the rotation base end, and the other end of the rotation doorstop is formed as the stop arm; a buffering portion is arranged at thestop arm; the door stop rotation base is secured to a surface of thedoor body by an adhesive; and the door stop body comprises a first bodymember and a second body member that are arranged along a verticaldirection, the first body member and the second body member beingengaged with each other to form the door stop body; and a second keyexposed from the door stop body is formed at an outer end of the secondoperating member; the second operating member comprises a secondoperating member body, an outer end of the second operating member bodybeing formed as a first key exposed from the door stop body, the thirdlocking portion being protruded from a lower surface of the secondoperating member body.
 15. The rotary door stop according to claim 12,wherein the first locking portion is arranged on the door stop body, andthe first operating member is arranged on the door stop rotation base;and the second locking portion is arranged on the door stop body, andthe second operating member is arranged on the door stop rotation base.16. The rotary door stop according to claim 13, wherein the door stoprotation base comprises a first door stop rotation base and a seconddoor stop rotation base, the first operating member or the secondoperating member being arranged between the first door stop rotationbase and the second door stop rotation base; and the first through holeand the second through hole are provided on the first door stop rotationbase; and the rotation fan region is formed between the first limitingblock and the second limiting block on the first door stop rotationbase, and the door stop body is provided with the third limiting block;wherein in the locked state, the first limiting portion is in contactwith one side of the first limiting block to limit the door stop body;and in the unlocked state, the third limiting block is abutted againstthe first limiting block to limit the door stop body.
 17. A rotary doorstop, comprising: a door stop rotation base configured to be fixed to adoor body or a door frame, the door stop rotation base being providedwith a first rotation limiting member; a door stop body rotatablyengaged with the door stop rotation base, the door stop body comprisinga rotation base end and a stop arm, the rotation base end beingrotatably engaged onto the door stop rotation base, the rotation baseend being provided with a second rotation limiting member; wherein thestop arm is configured to rotate about the door stop rotation base tobetween the door body and the door frame to achieve a stop effect todefine a locked state, or is configured to rotate about the door stoprotation base to a non-stop position to define an unlocked state; and arotation resetting member, the rotation resetting member being aresetting torsion spring and arranged between the door stop body and thedoor stop rotation base; wherein when the stop arm rotates to the lockedstate, the second rotation limiting member acts on the first rotationlimiting member to limit rotation of the stop arm relative to the doorstop rotation base.
 18. The rotary door stop according to claim 17,wherein a rotation base slot is recessed in a bottom surface of the doorstop body, the door stop rotation base being at least partially engagedinto the rotation base slot; the first rotation limiting member radiallyarranged on the door stop rotation base, and two second rotationlimiting members are juxtaposed in the rotation base slot, a rotationfan region being formed between the two second rotation limitingmembers, the first rotation limiting member being engaged in therotation fan region.
 19. The rotary door stop according to claim 18,wherein the rotary door stop is elongated, one end of the rotary doorstop is formed as the rotation base end, and the other end of the rotarydoor stop is formed as the stop arm; and a buffering portion is arrangedat the stop arm; the door stop rotation base is secured to a surface ofthe door body by an adhesive; and the door stop body comprises a firstbody member and a second body member that are arranged in a verticaldirection, the first body member and the second body member beingengaged with each other to form the door stop body.
 20. The rotary doorstop according to claim 17, wherein the door stop rotation basecomprises a first door stop rotation base, and the door stop bodycomprises a rotation base slot that is recessed and a rotation base slotwall that surrounds the rotation base slot, the rotation base slot wallbeing provided with a first limiting portion; the first door stoprotation base is provided with a first limiting block and a secondlimiting block that are spaced apart, a rotation fan region being formedbetween the first limiting block and the second limiting block, thefirst limiting portion being arranged in the rotation fan region; andthe door stop body is provided with a third limiting block; and in thelocked state, the first limiting portion is in contact with one side ofthe first limiting block to limit the door stop body; and in theunlocked state, the third limiting block is abutted against the otherside of the first limiting block to limit the door stop body.